The Giants' Graves are the remains of two Neolithic chambered tombs on the Isle of Arran. They are situated within 40 metres of each other, and stand on a ridge 120 metres above the sea in a clearing in a forest, overlooking Whiting Bay to the south.
The northern cairn has been much robbed, but the edges are still well-defined. The chamber is 6 metres long, and around 1 metre wide. It was excavated in 1902, and among the artifacts recovered were pottery shards, flint knives, and leaf-shaped arrowheads.
The southern cairn is at right angles to the larger northern cairn. The chamber is about 4 metres long, and over 1 metre wide. Excavations in 1902 only revealed soil and stones, however in 1961-1962 further exploration produced nine sherds of a round-based vessel, and fragments of burnt bone.
References:The Church of St Donatus name refers to Donatus of Zadar, who began construction on this church in the 9th century and ended it on the northeastern part of the Roman forum. It is the largest Pre-Romanesque building in Croatia.
The beginning of the building of the church was placed to the second half of the 8th century, and it is supposed to have been completed in the 9th century. The Zadar bishop and diplomat Donat (8th and 9th centuries) is credited with the building of the church. He led the representations of the Dalmatian cities to Constantinople and Charles the Great, which is why this church bears slight resemblance to Charlemagne's court chapels, especially the one in Aachen, and also to the Basilica of San Vitale in Ravenna. It belongs to the Pre-Romanesque architectural period.
The circular church, formerly domed, is 27 m high and is characterised by simplicity and technical primitivism.